Electromagnetic Induction
... inside the field when the right side is out. The resistance of the loop is 0.5 Ω. a. What is the direction of the induced current in the loop? b. Calculate the induced emf in the loop. c. Calculate the induced current in the loop. d. Calculate the applied force required to move the loop at the const ...
... inside the field when the right side is out. The resistance of the loop is 0.5 Ω. a. What is the direction of the induced current in the loop? b. Calculate the induced emf in the loop. c. Calculate the induced current in the loop. d. Calculate the applied force required to move the loop at the const ...
Electromagnetic Induction
... inside the field when the right side is out. The resistance of the loop is 0.5 Ω. a. What is the direction of the induced current in the loop? b. Calculate the induced emf in the loop. c. Calculate the induced current in the loop. d. Calculate the applied force required to move the loop at the const ...
... inside the field when the right side is out. The resistance of the loop is 0.5 Ω. a. What is the direction of the induced current in the loop? b. Calculate the induced emf in the loop. c. Calculate the induced current in the loop. d. Calculate the applied force required to move the loop at the const ...
The Lorentz Force
... of the velocity does not change. (b) If the electron (or any charged particle) moves at an angle other than 0° or 180° the velocity component parallel to B continues pointing in that direction while the component perpendicular to B rotates in a circle. The combined motion is a helix. ...
... of the velocity does not change. (b) If the electron (or any charged particle) moves at an angle other than 0° or 180° the velocity component parallel to B continues pointing in that direction while the component perpendicular to B rotates in a circle. The combined motion is a helix. ...
Grade 11 Physics – Course Review Part 2
... charge of +2e. What is the magnitude and the direction of the electric field that will balance its weight? 6. An electric field of 1.92 x 105 N/C is maintained across two plates separated by 1.50 cm. Find the electric force on an oil drop floating between the plates and carrying a charge of + 50e. 7 ...
... charge of +2e. What is the magnitude and the direction of the electric field that will balance its weight? 6. An electric field of 1.92 x 105 N/C is maintained across two plates separated by 1.50 cm. Find the electric force on an oil drop floating between the plates and carrying a charge of + 50e. 7 ...
Electromagnet
An electromagnet is a type of magnet in which the magnetic field is produced by an electric current. The magnetic field disappears when the current is turned off. Electromagnets usually consist of a large number of closely spaced turns of wire that create the magnetic field. The wire turns are often wound around a magnetic core made from a ferromagnetic or ferrimagnetic material such as iron; the magnetic core concentrates the magnetic flux and makes a more powerful magnet.The main advantage of an electromagnet over a permanent magnet is that the magnetic field can be quickly changed by controlling the amount of electric current in the winding. However, unlike a permanent magnet that needs no power, an electromagnet requires a continuous supply of current to maintain the magnetic field.Electromagnets are widely used as components of other electrical devices, such as motors, generators, relays, loudspeakers, hard disks, MRI machines, scientific instruments, and magnetic separation equipment. Electromagnets are also employed in industry for picking up and moving heavy iron objects such as scrap iron and steel.